Chirality Modeling Exercise . Several other conformations and orientations of 2-

Question

Chirality Modeling Exercise . Several other conformations and orientations of 2-chlorobutane are shown below. Makea ?-bonds of cither the R-or S-model and holding it in the model of each by rotating about the same orientation as in the drawing. Then use your model to help you draw a line-bond structure to the right of each conformation. Indicate if cach molecule is the R- or S- enantiomer (the answer to the first one is provided as an example). (3 pes) CI b. S-2-chlorobutane s)-2-CHorobutona Cl c. d. 2. Various isomers of 2-chloro-3-methylpentan-1-ol are shown below in different conformations and orientations. Using the template provided on top of each drawing, ad the chloro- and methyl-substituents with the correct stercochemistry. Try to do this by secing if the arc traced by cach stereocenter is the same as it is in the compounds shown below the templates. If this is difficult, make models of the starting conformation and orientation, same conformation and orientation as the template. (6 pts) and rotate the model to the ?? HO CI Several pairs of compounds are shown below. Are they isomers, or the same compound drawn differently? (3 pts) 3. HO. OH OH ?? isomers or same compound? isomers or same compound? isomers or same compound? 97

Explanation / Answer

5. chiral carbons are the stereogenic center or stereocenters

chiral carbon simply the carbon which is attach to different atoms no two directly linked atoms are same

so in this acc. to numbering 2nd and 4th carbon are stereocenters .....

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